An urban laboratory.

A botanic garden full of trees twisted into fantastic shapes and positions.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

The legendary building that needed ghostly approval before being built.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Venue for strange sideshow displays and musical acts.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

Version of the French Riviera destroyed by the sea.

Ancient human, animal, and geometric figures drawn in the earth.

This tiny square mile of Canadian sand was once considered the world's smallest desert.

The remote graves mark the mysterious deaths of four 19th century explorers.

The closest thing to Mars on Earth.

Earth's greatest purely vertical drop at 4,101 feet.

Roadside collection of 65,000 signs.

The largest single concentration of harmless garter snakes in the world is a writhing Canadian serpent orgy.

Surprisingly delicious Asian-style hot dogs.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

Handcrafted thermal spa washes away each night with the tide.

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.

One of Australia's famed "Big Things," this giant fruit was once stolen as part of a publicity stunt.

Three-story concrete ram with a permanent gift shop.

This eccentric cave dwelling is bizarre even by the standards of a subterranean town.